Make sure you're done hitting your bong by 9 p.m. because this show is free, so there's no reason to miss it! Unless you're too stoned to get up off your couch, that is. It's a 21-and-up happy hippie show, so join all three bands for some good vibes and free love.

While you're waiting for what might be your favorite day of the year, check out this video of Mergence performing their song "Dynamite and Kerosene."